Ingress Security for AI Workloads in Kubernetes: Protecting AI Endpoints with WAF

AI Workloads Have a New Front Door

For years, AI and machine learning workloads lived in the lab. They ran as internal experiments, batch jobs in isolated clusters, or offline data pipelines. Security focused on internal access controls and protecting the data perimeter.

That model no longer holds.

Today, AI models are increasingly part of production traffic, which is driving new challenges around securing AI workloads in Kubernetes. Whether serving a large language model for a customer-facing chatbot or a computer vision model for real-time analysis, these models are exposed through APIs, typically REST or gRPC, running as microservices in Kubernetes.

From a platform engineering perspective, these AI inference endpoints are now Tier 1 services. They sit alongside login APIs and payment gateways in terms of criticality, but they introduce a different and more expensive risk profile than traditional web applications. For AI inference endpoints, ingress security increasingly means Layer 7 inspection and WAF (Web Application Firewall) level controls at the cluster edge. By analyzing the full request payload, a WAF can detect and block abusive or malicious traffic before it ever reaches expensive GPU resources or sensitive data. This sets the stage for protecting AI workloads from both operational Continue reading

Why Doesn’t netlab Use X for Device Configuration Templates?

Petr Ankudinov made an interesting remark when I complained about how much time I wasted waiting for Cisco 8000v to boot when developing netlab device configuration templates:

For Arista part - just use AVD with all templates included and ANTA for testing. I was always wondering why netlab is not doing that.

Like any other decent network automation platform, netlab uses a high-level data model (lab topology) to describe the network. That data model is then transformed into a device-level data model, and the device-level data structures are used to generate device configurations.

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Upscale AI Nabs Cash To Forge “SkyHammer” Scale Up Fabric Switch

The first company that can make a UALink switch with high radix – meaning lots of ports – and high aggregate bandwidth across those ports that can compete toe-to-toe with Nvidia’s NVSwitch memory fabric and NVLink ports is going to make a lot of money. …

Upscale AI Nabs Cash To Forge “SkyHammer” Scale Up Fabric Switch was written by Timothy Prickett Morgan at The Next Platform.

D2DO292: AI, Augmented Engineers, and the Timeless Principles of Software Architecture

Ned and Kyler sit down with industry analyst Jon Collins for a fun and free-ranging discussion that covers everything from the changing landscape of software engineering to the importance of good architecture (physical and digital). They tackle the pros and cons of “Vibe Coding” as well as the “Augmentation Gap”, the idea that AI tools... Read more »

NAN111: Automation, AI, and the Future of Branch Networking: Inside Cisco Unified Branch (Sponsored)

In this sponsored episode, Eric sits down with Lee Peterson, VP of Product Management for Secure WAN, at Cisco. Together they discuss how Cisco Unified Branch is helping organizations scale, automate, and secure their distributed environments. They also define the Branch Network, discuss the major challenges facing network teams, and walk through Cisco’s vision of... Read more »

Lab: Distributing Level-2 IS-IS Routes into Level-1 Areas

One of the major differences between OSPF and IS-IS is their handling of inter-area routes. Non-backbone OSPF intra-area routes are copied into the backbone area and later (after the backbone SPF run) copied into other areas. IS-IS does not copy level-2 routes into level-1 areas; level-1 areas (by default) behave like totally stubby OSPF areas with the level-1 routers using the Attached (ATT) bit of level-1-2 routers in the same area to generate the default route.

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NGINX is Retiring: Your Step-by-Step Guide to Replacing Ingress NGINX

Your Curated Webinar & Blog Collection

The Ingress NGINX Controller is approaching retirement, and teams need a clear path forward to manage Kubernetes ingress traffic securely and reliably. To make this transition easier, we’ve created a single, curated hub with all the relevant blogs and webinars. This hub serves as your one-stop resource for understanding the migration to Kubernetes Gateway API with Calico Ingress Gateway.

This curated hub is designed to guide your team from understanding Ingress NGINX retirement, through evaluating options, learning the benefits of Calico Ingress Gateway, and ultimately seeing it in action with webinars and a demo.

Use This Collection to Help You Migrate Safely

  • ✅ One-stop resource: No need to hunt across the site for guidance.
  • ✅ Recommended reading order: Helps teams build knowledge progressively.
  • ✅ Actionable takeaways: Blogs explain why and how to migrate; webinars show it in practice.
  • ✅ Demo access: Direct link to schedule personalized support for your environment.

Recommended Reading

Step 1: Understand the Retirement of Ingress NGINX and the changing landscape

Step 2: Compare Approaches, including Ingress vs. Continue reading

Paito SGP Terbaik dan Terpercaya sebagai Referensi Data SGP yang Konsisten

Pengantar Pentingnya Paito SGP Terbaik dan Terpercaya

Paito SGP terbaik dan terpercaya menjadi rujukan utama bagi pembaca yang membutuhkan ringkasan data harian secara rapi. Banyak orang memilih paito karena tampilannya sederhana namun informatif. Selain itu, paito memudahkan pencatatan tanpa harus membuka data satu per satu.

Di tengah banyaknya sumber, kualitas paito menentukan kepercayaan. Oleh sebab itu, memilih paito SGP yang tepat membantu pembaca memperoleh data SGP yang akurat dan konsisten. Dengan pendekatan ini, pembaca dapat memantau result SGP secara terstruktur.

Apa Itu Paito SGP dan Fungsi Utamanya

Secara umum, paito SGP merupakan tabel visual yang menyusun hasil SGP berdasarkan hari dan tanggal. Fungsi utamanya adalah menyederhanakan Continue reading

Keindahan dan Legenda di Dalam Gua Jatijajar Kebumen

Sejarah Menarik Gua Jatijajar

Gua Jatijajar berada di Kebumen, Jawa Tengah. Lokasinya berada di wilayah perbukitan kapur yang sangat memukau. Selain itu, gua ini menawarkan kombinasi wisata alam dan kisah sejarah yang membuat banyak wisatawan tertarik.

Konon, masyarakat menemukan gua ini pada abad ke-19. Mereka menemukan gua saat sedang menggali tanah di area persawahan. Sejak itu, warga setempat mulai mengenali potensi wisata gua tersebut. Walau begitu, pemerintah kemudian mengembangkan kawasan ini lebih modern.

Nama Jatijajar memiliki arti unik. Kata “jati” berarti pohon jati dan “jajar” berarti berjajar rapi. Tempat ini dahulu dikelilingi pohon jati yang berdiri berderet. Oleh karena itu, nama tersebut melekat hingga sekarang.

Menariknya, gua ini juga menyimpan kisah legenda Raden Kamandaka atau Lutung Kasarung. Kisah ini menambah daya tarik budaya dan spiritual. Wisatawan dapat melihat beberapa diorama yang menggambarkan perjalanan tokoh tersebut. Dengan demikian, mereka bisa memahami cerita lokal sambil menikmati suasana alam khas pegunungan kapur.

Selain itu, pemerintah daerah terus menjaga kelestarian gua. Mereka melakukan berbagai perawatan. Jadi, area wisata tetap aman dan nyaman. Hingga kini, Gua Jatijajar menjadi salah satu ikon wisata unggulan Kebumen. Bahkan, banyak wisatawan Continue reading

KERIS TAMING SARI: SENJATA LEGENDA YANG SARAT NILAI SEJARAH

Asal Usul Keris Taming Sari

Legenda Keris Taming Sari selalu menarik perhatian banyak orang. Senjata ini terkenal sebagai keris sakti yang menyimpan kisah luar biasa. Menurut cerita rakyat, keris ini pertama kali muncul di Kerajaan Majapahit. Keris tersebut kemudian menjadi milik Hang Tuah, seorang pahlawan terkenal dari Kesultanan Malaka.

Para pandai besi hebat dipercaya menempa keris ini dengan teknik tingkat tinggi. Karena itu, Taming Sari dianggap unik. Selain itu, setiap detailnya menunjukkan karya seni kelas tinggi. Walaupun banyak legenda, para sejarawan tetap menilai benda ini sebagai simbol kejayaan masa lalu.

Selain sejarah Majapahit, hubungan dengan Malaka juga sangat kuat. Hang Tuah memakai keris ini dalam berbagai pertempuran. Oleh karena itu, sosok Hang Tuah selalu identik dengan Keris Taming Sari. Cerita tersebut terus bertahan dari generasi ke generasi.

Lebih jauh lagi, masyarakat percaya bahwa keris ini memiliki kekuatan mistis. Banyak dongeng menyebutkan keris mampu menang sendiri tanpa tuannya. Hal tersebut membuat banyak orang menganggapnya sebagai benda pusaka paling berpengaruh di Nusantara.

Ciri Khas Keris Taming Sari

Bila membahas keris legendaris ini, Continue reading

Burung yang Hanya Ada di Indonesia: Cucakrawa

Keindahan Burung Endemik dengan Suara Merdu

Burung Cucakrawa atau dikenal sebagai Cucak Rawa menjadi salah satu burung yang sangat istimewa di Indonesia. Selain itu, burung ini juga memiliki kicauan merdu yang memukau banyak pecinta burung. Karena itu, banyak orang merasa terpikat oleh pesonanya. Bahkan, mereka rela menghabiskan banyak uang untuk memilikinya. Namun, keberhasilan dalam melestarikan burung endemik ini tetap menjadi fokus penting.

Selain itu, Cucakrawa juga memperlihatkan warna tubuh yang menarik. Bulunya terlihat cokelat zaitun dengan kombinasi putih bersih di beberapa bagian. Kemudian, bentuk tubuhnya tampak gagah dan elegan. Karena itu, burung ini semakin populer. Hingga kini, keberadaannya tetap menjadi simbol kekayaan alam Indonesia.

Asal Usul dan Habitat Alami

Secara ilmiah, Cucakrawa memiliki nama Pycnonotus zeylanicus. Burung ini hanya hidup di Indonesia, terutama di wilayah Sumatra, Jawa, dan sebagian Kalimantan. Mereka hidup di rawa, hutan sekunder, serta daerah lembap. Oleh karena itu, mereka sangat bergantung pada lingkungan yang alami dan terjaga.

Selain itu, burung ini juga senang tinggal pada pepohonan tinggi. Mereka memilih tempat yang Continue reading

On MPLS Paths, Tunnels and Interfaces

One of my readers attempted to implement a multi-vendor multicast VPN over MPLS but failed. As a good network engineer, he tried various duct tapes but found that the only working one was a GRE tunnel within a VRF, resulting in considerable frustration. In his own words:

How is a GRE tunnel different compared to an MPLS LSP? I feel like conceptually, they kind of do the same thing. They just tunnel traffic by wrapping it with another header (one being IP/GRE, the other being MPLS).

Instead of going down the “how many angels are dancing on this pin” rabbit hole (also known as “Is MPLS tunneling?”), let’s focus on the fundamental differences between GRE/IPsec/VXLAN tunnels and MPLS paths.

Read more …

IP Addresses through 2025

It's time for another annual roundup from the world of IP addresses. Let’s see what has changed in the past 12 months in addressing the Internet and look at how IP address allocation information can inform us of the changing nature of the network itself.

How we mitigated a vulnerability in Cloudflare’s ACME validation logic

On October 13, 2025, security researchers from FearsOff identified and reported a vulnerability in Cloudflare's ACME (Automatic Certificate Management Environment) validation logic that disabled some of the WAF features on specific ACME-related paths. The vulnerability was reported and validated through Cloudflare’s bug bounty program.

The vulnerability was rooted in how our edge network processed requests destined for the ACME HTTP-01 challenge path (/.well-known/acme-challenge/*).

Here, we’ll briefly explain how this protocol works and the action we took to address the vulnerability. 

Cloudflare has patched this vulnerability and there is no action necessary for Cloudflare customers. We are not aware of any malicious actor abusing this vulnerability.

How ACME works to validate certificates

ACME is a protocol used to automate the issuance, renewal, and revocation of SSL/TLS certificates. When an HTTP-01 challenge is used to validate domain ownership, a Certificate Authority (CA) will expect to find a validation token at the HTTP path following the format of http://{customer domain}/.well-known/acme-challenge/{token value}. 

If this challenge is used by a certificate order managed by Cloudflare, then Cloudflare will respond on this path and provide the token provided by the CA to the caller. If the token provided does not Continue reading

How Moving Away from Ansible Made netlab Faster

TL&DR: Of course, the title is clickbait. While the differences are amazing, you won’t notice them in small topologies or when using bloatware that takes minutes to boot.

Let’s start with the background story: due to the (now fixed) suboptimal behavior of bleeding-edge Ansible releases, I decided to generate the device configuration files within netlab (previously, netlab prepared the device data, and the configuration files were rendered in an Ansible playbook).

As we use bash scripts to configure Linux containers, it makes little sense (once the bash scripts are created) to use an Ansible playbook to execute docker exec script or ip netns container exec script. netlab release 26.01 runs the bash scripts to configure Linux, Bird, and dnsmasq containers directly within the netlab initial process.

Now for the juicy part.

Read more …

RAID 5 with mixed-capacity disks on Linux

Standard RAID solutions waste space when disks have different sizes. Linux software RAID with LVM uses the full capacity of each disk and lets you grow storage by replacing one or two disks at a time.

We start with four disks of equal size:

$ lsblk -Mo NAME,TYPE,SIZE
NAME TYPE  SIZE
vda  disk  101M
vdb  disk  101M
vdc  disk  101M
vdd  disk  101M

We create one partition on each of them:

$ sgdisk --zap-all --new=0:0:0 -t 0:fd00 /dev/vda
$ sgdisk --zap-all --new=0:0:0 -t 0:fd00 /dev/vdb
$ sgdisk --zap-all --new=0:0:0 -t 0:fd00 /dev/vdc
$ sgdisk --zap-all --new=0:0:0 -t 0:fd00 /dev/vdd
$ lsblk -Mo NAME,TYPE,SIZE
NAME   TYPE  SIZE
vda    disk  101M
└─vda1 part  100M
vdb    disk  101M
└─vdb1 part  100M
vdc    disk  101M
└─vdc1 part  100M
vdd    disk  101M
└─vdd1 part  100M

We set up a RAID 5 device by assembling the four partitions:1

$ mdadm --create /dev/md0 --level=raid5 --bitmap=internal --raid-devices=4 \
>   /dev/vda1 /dev/vdb1 /dev/vdc1 /dev/vdd1
$ lsblk -Mo NAME,TYPE,SIZE
    NAME          TYPE    SIZE
    vda           disk    101M
┌┈▶ └─vda1        part    100M
┆   vdb           disk    101M
├┈▶ └─vdb1        part    100M
┆    Continue reading
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